From dd576c89a3f2e5f7dbf7945813a4fd5ed056bfd3 Mon Sep 17 00:00:00 2001
From: Paolo Perkovic <paolo.perkovic@gmail.com>
Date: Sat, 1 Apr 2017 13:29:44 +0200
Subject: [PATCH] Fix StereoBM ROI selection

- Fix StereoBM ROI (Region of interest) selection for stereo
images used by block matching algorithm
---
 modules/calib3d/src/stereobm.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/calib3d/src/stereobm.cpp b/modules/calib3d/src/stereobm.cpp
index eb075d8c73..5ed45a4884 100644
--- a/modules/calib3d/src/stereobm.cpp
+++ b/modules/calib3d/src/stereobm.cpp
@@ -1184,8 +1184,8 @@ public:
         parallel_for_(Range(0, 2), PrefilterInvoker(left0, right0, left, right, _buf, _buf + bufSize1, &params), 1);
 
         Rect validDisparityRect(0, 0, width, height), R1 = params.roi1, R2 = params.roi2;
-        validDisparityRect = getValidDisparityROI(R1.area() > 0 ? Rect(0, 0, width, height) : validDisparityRect,
-                                                  R2.area() > 0 ? Rect(0, 0, width, height) : validDisparityRect,
+        validDisparityRect = getValidDisparityROI(R1.area() > 0 ? R1 : validDisparityRect,
+                                                  R2.area() > 0 ? R2 : validDisparityRect,
                                                   params.minDisparity, params.numDisparities,
                                                   params.SADWindowSize);